Thermal-mechanical coupling response of aluminum alloy hull structure under fire
To investigate the thermal-structural coupling response of the deck structure of an air-cushion vehicle under fire and high-temperature conditions,a fire scenario model of the vehicle was constructed based on the Large Eddy Simula-tion method FDS(Fire Dynamic Solution).The high-temperature field characteristics of oil pool fires with different heat release rates were obtained.The thermal-structural coupling response of the ship structure under fire scenarios was studied by using the unit heat flux data of the structure surface with a self-developed temperature load mapping program and a sequential thermal-structural coupling calculation method.Failure modes of the deck structure and changes in the ultimate bearing capacity of the compartments of the air-cushion vehicle were analyzed.The results provide technical support for the sub-sequent light-weight design and fire-resistant design schemes of the aluminum alloy structure of the hull.
aluminum alloy hull structurelarge eddy simulationtemperature field characteristicsthermal-mech-anical coupling response of structure
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